Abstract: A system and method is presented for a multi-sensor component for an HVAC system. The multi-sensor component comprises a sensor assembly, having a temperature detector for measuring a temperature of an object or medium, a presence detector to detect the presence of the object or medium against the sensor, and a pressure detector for measuring a pressure of the medium. The temperature, presence and pressure detectors may also be affixed within a single sensor housing. In a heating mode the multi-sensor component is heated by a heater, and in a cooling mode the multi-sensor component cools toward a temperature of the object or medium, and the temperature detector provides temperature data indicative of a temperature response comprising one of a temperature change, a rate of change and a time constant of a thermal decay rate of the multi-sensor component and the presence of the object or medium.

Abstract: A system and method is presented for a multi-sensor component for an HVAC system. The multi-sensor component comprises a sensor assembly, having a temperature detector for measuring a temperature of an object or medium, a presence detector to detect the presence of the object or medium against the sensor, and a pressure detector for measuring a pressure of the medium. The temperature, presence and pressure detectors may also be affixed within a single sensor housing. In a heating mode the multi-sensor component is heated by a heater, and in a cooling mode the multi-sensor component cools toward a temperature of the object or medium, and the temperature detector provides temperature data indicative of a temperature response comprising one of a temperature change, a rate of change and a time constant of a thermal decay rate of the multi-sensor component and the presence of the object or medium.

Abstract: Wafer temperature is measured as a function of time following removal of a heat source to which the wafer is exposed. During the wafer temperature measurements, a gas is supplied at a substantially constant pressure at an interface between the wafer and a chuck upon which the wafer is supported. A chuck thermal characterization parameter value corresponding to the applied gas pressure is determined from the measured wafer temperature as a function of time. Wafer temperatures are measured for a number of applied gas pressures to generate a set of chuck thermal characterization parameter values as a function of gas pressure. A thermal calibration curve for the chuck is generated from the set of measured chuck thermal characterization parameter values and the corresponding gas pressures. The thermal calibration curve for the chuck can be used to tune the gas pressure to obtain a particular wafer temperature during a fabrication process.

Abstract: A method and system for monitoring the quality of a given gas mixture being transmitted under pressure by throttling a sample of the gas mixture to a representative pressure and measuring the hydrocarbon dew point of the sample at the representative pressure. The measured hydrocarbon dew point is indicative of the cricondentherm of the gas mixture. The representative pressure is pre-selected to provide a pre-selected margin of error between measured hydrocarbon dew points of a set of representative gas mixtures at the representative pressure and respective cricondentherms of the set of representative gas mixtures.

Abstract: The installation contains a current conductor producing Joulean heat in the operating state, a cooling element and a monitoring device. The cooling element has a condensable working medium and an evaporator, which can be heated by the current conductor of the installation, and a condenser which has been withdrawn from the heating effect of the current conductor. The monitoring device comprises at least one sensor for detecting a parameter of the cooling element and an evaluation unit, which receives output signals from the sensor. In the evaluation unit, the output signals of the sensors are evaluated and a signal describing the state and/or the functionality of the cooling element is formed there. This installation is characterized by high operational reliability with a high current-carrying capacity and dimensions which are kept small.

Abstract: Methods and systems for compensating temperature measurements by a temperature gauge comprising a first temperature sensor and a second reference temperature sensor, having different thermal properties, located in the same temperature environment to be measured. The methods and systems compensate for errors in the measured temperatures due to variations in the reference sensor caused by temperature effects.

Abstract: An object comprising a body part having an electrically insulating outer surface part, and a first layer arranged on the outer surface part. The first layer is formed by one or more electrically conducting materials and defines one or more conducting paths between a first area of the outer surface part and a second area of the outer surface part. Thereby electrical signals may be transferred between the first and second area parts. The layer further defines a sensing device, which is thereby embedded into the object. The object is provided with a threaded portion defining an outer thread. Thereby the object may easily be fitted into an opening having a mating inner thread. The object may be in the form of an ordinary bolt with a sensing device embedded in a surface part thereof.

Abstract: Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.

Abstract: A sensor for detecting icing conditions in an airstream includes a flow housing mounted on an aircraft and in which one or more probes are mounted. At least one of the probes subjected to impingement of the airstream and liquid moisture droplets in such airstream. The heat removal, or cooling effect on the probe in the airstream carrying liquid droplets is determined. A temperature signal indicating the airstream temperature is combined with signals from the at least one probe for determining whether or not icing conditions are present.

Abstract: An electric submersible pump device, comprising an electric motor having stators and coils; a pump coupled with the electric motor; a thermocouple or RTD for measuring temperature of the motor windings.

Abstract: A sensor plug for pressure and temperature measurement of a fluid medium includes a sensor body having a sensor body axis, as well as a pressure sensor disposed substantially concentrically on the sensor body axis. Also provided in the sensor body is a through orifice for connecting the pressure sensor to the fluid medium, and a temperature sensing element orifice having a temperature sensing element received therein. The temperature sensing element orifice has a temperature sensing element orifice axis that is inclined with respect to the sensor body axis in such a way that at its end pointing toward the fluid medium, it is inclined toward the sensor body axis.

Abstract: A device for recording the pressure and the temperature in an intake manifold of an internal combustion engine, a pressure sensor and a temperature sensor being situated in a common housing, and an evaluation of a signal of the temperature sensor being provided outside the housing. An EMC protective circuit is provided in this context, which is integrated into the housing and/or is situated on the housing, and is electrically connected to the temperature sensor.

Abstract: A multiple sensor fiber optic sensing system. A method of sensing distributed temperature and at least another property in a well includes the steps of: interconnecting an optical switch to an optical fiber which extends along a wellbore in the well; operating the optical switch to optically connect the optical fiber to an interferometric measurement system; and operating the optical switch to optically connect the optical fiber to a distributed temperature measurement system. Another method includes the steps of: installing an optical fiber along a wellbore in the well, the optical fiber being a first distributed temperature sensor, the installing step including providing a substantial length of the optical fiber proximate a second sensor which senses the well property; and calibrating the second sensor using a temperature sensed by the first sensor in the substantial length of the optical fiber.

Abstract: A method and apparatus for detecting at least two process variables in a loop powered circuit. The method includes the steps of (a) powering the loop, detecting a first process variable value during a first time interval, (b) detecting a second process variable value during a second time interval after the expiration of the first time interval, where the detected process variable values are represented by the magnitude of a current passing through the loop circuit.

Abstract: Temperature sensor with a temperature-dependent actuating device (12) comprising a capillary tube (14) which is filled with a gaseous or liquid medium which—in case of temperature changes along a measuring distance formed by the capillary tube (14)—effects a pressure or volume change and which comprises a path transmission element (16) which is provided medium-tight at one end of the capillary tube (14) and exerts a stroke movement depending on the pressure or volume in the capillary tube (14), and with a sensor which is designed as a Hall-effect probe (27) and which detects, contact-free, the stroke movement of the path transmission element (16) via a magnet (34) arranged on the path transmission element (16) or a section pointing toward the Hall-effect probe (27) on the path transmission element (16) of a magnetic material, characterized in that the path transmission element (16) is fixed on the housing bottom (25), and that a printed circuit board (28) taking up the Hall-effect probe (27) is arranged—separ

Abstract: There are provided a process and the like for judging a residual lifetime of a run-flat tire and an end stage of the residual lifetime thereof during continuous running at a run-flat state.

Abstract: A transducer sensor is positioned within a hollow of the body of a housing. The housing has an extending alignment pin, which pin coacts with a corresponding slot or aperture in the wall of a vessel whose pressure or temperature is to be monitored. The transducer body is associated with a connector where the alignment pin is placed and extends from the housing in a fixed relation to the connector. A suitable aperture or slot in the wall of the vessel to be monitored accommodates the extending pin whereby when the transducer is placed in the vessel aperture the connector associated with the transducer is always located in proper position. Positioned on the housing is a sliding nut which can move in a direction parallel to the central axis of the housing and either to the right or left.

Abstract: A process transmitter includes a temperature responsive indicator to indicate an operating condition of the process transmitter. The operating condition may represent a level of a sensed process variable or an operating temperature of the process transmitter.

Abstract: An inflow control device comprising a housing; a fluid inlet to the housing; a fluid resistance pathway defined within the housing; a fluid outlet from the resistance pathway leading to a fluid flow passage; and an exit sensor positioned to measure a fluid parameter in the fluid flow passage immediately downstream of the resistance pathway and method.

Abstract: In an occupant detection or classification system for a motor vehicle, a sensor mat (2) measures the pressure or pressure distribution on a seating surface. A control unit (4) receives the signals from the sensor mat (2) representing an occupancy of the vehicle seat. The temperature of the foam core (1) underlying the seating surface is measured at a location other than in the center of the foam core and, specifically, at the control unit (4).

Abstract: The present invention relates to a combined pressure and temperature sensor (10) for recording the pressure and the temperature of a medium. The combined pressure and temperature sensor (10) includes a sensor element (12; 54, 56) in which at least one channel (16, 58) is developed for accommodating a temperature sensor (18) and at least one channel (26, 28, 70) is developed for recording a pressure. The at least one channel (26, 28), for recording a pressure, opens out under a pressure sensor (30, 60). The at least one channel (16, 58) for the temperature sensor (18) runs centrically in the sensor element (12).

Abstract: A two-in-one temperature and pressure gauge is constituted primarily by a shell, a housing, a score panel, a needle set, a temperature sensing mechanism, and a pressure sensing mechanism. The needle set includes two needles which are coaxially installed, with one needle being connected with the temperature sensing mechanism, and the other needle being connected with the pressure sensing mechanism. The invention can be both used as the temperature gauge and the pressure gauge at a same time, a space for installing gauge sets can be decreased, and manufacturing cost can be reduced.

Abstract: A detection apparatus for measuring fluid in a vessel, comprising: at least one processor for receiving, processing and storing data from sensors in the vessel, at least one vertical support disposed within the vessel and at least one pair of sensors connected to the at least one vertical support. The sensors continuously provide measurement data to the processor, wherein the processor synchronously polls measurement data from the sensors, continuously calculates values, and compares the calculated values to at least one predetermined range of values for the fluid in the vessel to identify whether the calculated values are within the predetermined values. The processor communicates the compared value to a data collector.

Abstract: A sensor arrangement (1) for measuring a pressure and a temperature in a fluid is disclosed. The sensor arrangement (1) comprises a temperature sensitive electrical element (3) and a pressure sensing electrical element (6), the temperature sensitive electrical element (3) and pressure sensing electrical element (6) are both coupled to one side of a metallic membrane structure (4,16). The metallic membrane structure is arranged to pass on the temperature of the fluid which is at the other side of the membrane structure (4,16) to the temperature sensitive electrical element (3) and to pass on the pressure in the fluid to the pressure sensing electrical element (6). In this way a combined pressure and temperature sensor is obtained which is applicable in vehicle air-conditioning systems working with CO2 as refrigerant.

Abstract: Pressure and temperature inside a high-pressure container (common rail) are measured by means an ultrasonic emitter or an ultrasonic receiver which can detect the pressure inside the high-pressure container in a medium on the basis of the transit time of a pressure pulse. To this end, the ultrasonic receiver receives the pressure pulse, which propagates inside an additional element that is disposed between the ultrasonic emitter or ultrasonic receiver and the medium, and this propagation is ascertained accordingly in order to calculate a temperature from it.

Abstract: A thermowell mounting assembly and method which allow a finite-length thermowell tube to be precisely adjusted by length during field installation to a desired position within a machine, process unit, or other location to be evaluated by a thermocouple. The adjustable length thermowell protects the thermocouple from a harsh process environment while simultaneously facilitating temperature measurement by the thermocouple at the adjusted length of the thermowell. Adjustment of thermowell length is achieved by rotation of the thermocouple-thermowell assembly from a position exterior to a mounting flange connected to the machine or process unit.

Abstract: A micro mechanical vacuum sensor for determining the pressure within a cavity of a micro mechanical device is provided. The sensor comprises a substrate, at least one electrically conductive support member connected to the substrate, and a thermally resistive layer supported by the at least one support member and spaced from the substrate by the support member to provide a space between the thermally resistive layer and the substrate. The sensor is arranged such that the thermally resistive layer is substantially thermally insulated from the substrate. The sensor is further arranged to be driven such that the pressure within the cavity is determined by a temperature value sensed by the sensor.

Abstract: A pressure sensor device includes a temperature sensor mounted on a common housing composed of a resin head and a resin pipe both hermetically connected to each other. The pressure sensor device is mounted on, for example, on an intake manifold of an internal combustion engine to measure an amount of air supplied to the engine based on detected pressure and temperature of the air. A pressure sensor is mounted on the resin head, and a temperature sensor element is supported in the resin pipe. A lead wire of the temperature sensor element such as a thermistor is electrically connected to a conductor bar embedded in the resin pipe. The temperature sensor is directly exposed to the air in the intake manifold, and a size of the temperature sensor and the lead wire is made small to make a response speed of the temperature sensor element high.

Abstract: An acoustic pyrometer measures the average gas temperature across a space of known distance, especially turbulent, high temperature gas loaded with caustic particulates. It includes an acoustic signal generator that generates a high amplitude acoustic signal with a short rise time The acoustic signal generator includes an outer tank closed at top and bottom ends by top and bottom end walls and enclosing an outer chamber. A cylinder is supported within the tank and has top and bottom opposed ends. A mid-plate extends across the cylinder and defines the bottom end, and an axial opening in the mid-plate receives a shaft of a piston assembly having an upper piston and a lower piston at ends of the shaft. A throat is attached to the bottom end, and receives the lower piston. The lower piston seals the throat when received in the throat. The upper piston is slidable in the cylinder under influence of air pressure.

Abstract: The invention concerns a method and a system for detecting a leakage in a pipeline (4) or similar conduit characterized by the use of an umbilical flexible tube (1) laid within and along said pipeline (4), the displacement of a solution column (2) within said umbilical flexible tube (1), the measurement of the pressure (P) at the front (3) of said solution column (2) and the localization of said front (3) from the said measured pressure (P).

Abstract: Method for the indirect tire pressure monitoring in which an analysis of the natural oscillation behavior of at least one tire is performed and at least one pressure loss analysis variable (fFL, fFR, fRL, fRR), in particular a natural frequency, is determined, in which case a temperature compensation (4) of the pressure loss analysis variable (fFL, fFR, fRL, fRR) is performed, and in which case a tire temperature (Ttire) calculated by means of a temperature model (1) is used to determine a compensation quantity (2), in particular the quotient of variation of the pressure loss analysis variable and change in temperature.

Abstract: Apparatus, methods, and other embodiments associated with measuring environmental parameters are described herein. In one embodiment, a transducer comprises a tube, an elongated member, a first reflective surface, a second reflective surface, and an optical fiber. The tube has a first end and a second end, and the elongated member also has a first end and a second end, with the first end of the elongated member secured to the tube. The second reflective surface is secured to the second end of said elongated member, and the first reflective surface is spaced apart from the second reflective surface and secured to the second end of the tube. The optical fiber is positioned to direct light towards the first and second reflective surfaces and to collect the reflected light from these two surfaces.

Abstract: The invention relates to a multifunctional tool such as, for example, a multifunctional pocket knife which is characterized by having at least one measuring and display device (12, 14) for measuring and displaying a physical value.

Abstract: An apparatus generally including a housing, a power source, a temperature sensor, a display and a circuit. The housing may have a bore adaptable to receive a flow of water. The power source may be operational for generating electricity and coupled to the housing. The temperature sensor may be coupled to the housing and in thermal contact with the water flowing through the bore. The visual display may be coupled to the housing and configured to display a temperature of the water. The circuit may be powered by the electricity and configured to control the display in response to reading the temperature sensor.

Abstract: The invention discloses a method for compensating temperature in a system for tire pressure monitoring which is especially implemented by detecting a tire pressure and/or by detecting a tire pressure loss. The method is especially characterized in that the temperature is compensated by determining the gas temperature in the tire by way of at least two items of temperature information and by taking the determined temperature as a basis for said tire inflation monitoring. One significant advantage of this method involves that externally active temperature changes, such as a heat-emitting brake disc causing the wheel rim of the tire and, hence, also a temperature sensor arranged thereat to be heated more intensely than the gas in the tire, do not lead to an indication error with respect to the tire pressure (or a spurious alarm).

Abstract: A probe that includes both a temperature transducer and a pressure sensing port is adapted to be mounted upon and extend into the intake housing of a gas turbine engine. The probe is operative to provide air temperature and pressure data to an engine controller for the gas turbine engine.

Abstract: A measurement cell for an injection machine has a cavity formed between two removable and exchangeable internal metallic blocks equipped with a cooling and heating system. The internal metallic blocks are laterally isolated from bodies that hold the blocks by a space of air that restricts transversal heat transfer in the cavity due to the presence of two polymeric bars installed on its lateral edges edges to generate a one-dimensional heat transfer regime on the central zone of a plate of material to be analyzed. The measurement cell also has a set of fixed pressure and temperature sensors on the bodies connected to a data acquisition system to store signals therefrom and a removable and reusable unit of temperature sensors that possesses ceramic or metallic tubes assembled in a block carrier to guide and fix a group of at least three temperature sensors on the cavity also connected to the same data acquisition system.

Abstract: A combination clock radio, weather station and message organizer includes a base unit having a visual display, a controller located in the base unit including a central processor for controlling operation of the combination, and a temperature sensor for obtaining outdoor temperature readings, the temperature sensor being in communication with the controller. The controller is adapted to present a hue on the visual display that is a function of the outdoor temperature reading. The combination may also include a pressure sensor in communication with the controller for monitoring a rate of change in atmospheric pressure and providing a weather forecast animation that is a function of the changes in the atmospheric pressure.

Abstract: A pneumatic function generator system for maintaining a desired pressure and/or a desired rate of pressure change with respect to time. The pneumatic function generator system may include a servo valve for controlling the amount of fluid traveling therethrough, a primary sensor for measuring the pressure of the fluid and for generating an analog signal corresponding to the pressure of the fluid, an analog-to-digital module for converting the analog signal to a digital value, and a digital device for receiving the digital value and, depending on the digital value, generating a control signal that is used to control the opening and closing of the servo valve.

Abstract: A measurement cell for an injection machine has a cavity formed between two removable and exchangeable internal metallic blocks equipped with a cooling and heating system. The internal metallic blocks are laterally isolated from bodies that hold the blocks by a space of air that restricts transversal heat transfer in the cavity due to the presence of two polymeric bars installed on its lateral edges edges to generate a one-dimensional heat transfer regime on the central zone of a plate of material to be analyzed. The measurement cell also has a set of fixed pressure and temperature sensors on the bodies connected to a data acquisition system to store signals therefrom and a removable and reusable unit of temperature sensors that possesses ceramic or metallic tubes assembled in a block carrier to guide and fix a group of at least three temperature sensors on the cavity also connected to the same data acquisition system.

Abstract: This invention relates to digitally measuring operating parameters, for example, temperature, within a semiconductor chip and making those measurements internally available to hardware, firmware, and software.

Abstract: A system and method for regulating the temperature of a sensor to reduce temperature gradients that form within the sensor. In one embodiment, the temperature gradients are reduced utilizing a temperature regulator with two controlled zones that surround a variable capacitance sensor. Measurements are made for the ambient temperature of at least one of the two temperature controlled zones, and the temperature differential between the two temperature controlled zones. The temperature regulator then adjusts the temperature of the two controlled zones based upon this differential in order to minimize the existing temperature gradient.

Abstract: This invention relates to an improved structure for the vehicular temperature, pressure and vacuum meters with characteristics on that the hand rod is an integrally formed design joined to the dial plate and Bourdon tube without using any bolts or screws, so it is convenient for fast assembly. The Bourdon tube and the hand rod are designed to be suitable for application of any size of the dial plate, so the Bourdon tube, the hand rod and the dial plate can be manufactured and assembled in mass production and tested beforehand to assure the required sensitivity and accuracy as long as the retaining recess on the dial plate can be fitted and locked firmly in place with the retaining protruding point on the meter housing.

Abstract: A pressure sensor includes a diaphragm having a first surface receiving pressure, and a first thermal detection section opposed to a central section of the diaphragm through a spacer and having a thermo-sensitive resistance section, and a second thermal detection section opposed to an end section of the diaphragm and having a thermo-sensitive resistance section, wherein the first thermo-sensitive resistance section and second thermo-sensitive resistance section are connected to independent, adjustable constant-current sources, respectively, and are connected to a differential amplifier which amplifies a difference between (i) a voltage of the first thermal detection section, which detects a displacement quantity of the diaphragm due to pressure change as a displacement quantity of a thermal equilibrium state by the thermal detection section, and (ii) a voltage of the second thermal detection section, which does not change according to pressure. The sensor can measure pressure with high accuracy.

Abstract: A temperature probe (10) including a cylindrical thermally conductive housing (10) and a temperature sensor (18) employing a resistive temperature element (22) mounted therein. The temperature sensor (18) is mounted at one end of the housing (12) by a thermally conductive potting material (50). Signal wires (36) electrically couple to the resistive element (22) extend through an elongated insulated member (30) and out of an end of the housing (12) opposite the sensor (18). Changes in the temperature of the housing are quickly transferred to the resistive temperature element (22) through the conductive potting material (50). In one embodiment, the probe (10) is combined with a pressure transducer (60) to provide a pressure and temperature sensing device.

Abstract: A flow controller for controlling a flow rate of a fluid flowing through a fluid passage comprises a control valve for which a degree of opening of a valve is adjusted by a control signal, an orifice arranged on an outflow side of the control valve, a combined sensor arranged on an inflow side of the orifice for almost simultaneously detecting a pressure and a temperature of the fluid, and a control circuit. The combined sensor includes a pressure-detecting element for deriving a detection signal corresponding to the pressure of the fluid, and a temperature-detecting element for deriving a detection signal corresponding to the temperature of the fluid. The pressure-detecting element and the temperature-detecting element are arranged closely to one another on an identical surface of a pressure-receiving section.

Abstract: The invention relates to a method and a device for monitoring, also permanently and automatically, temperature distributions and/or temperature anomalies on the basis of distributed fiber-optic temperature sensing as well as to the use of such methods. According to the invention the detection of local temperature extremes, i.e. minimums or maximums, in view of the evaluation is performed by an evaluation without numeric derivations. With the device for monitoring ascending and supply pipes surrounded by an annular space it is possible to check the safety of pressurized installations, particularly in the field of low-pressure gas storage, in a cost-efficient manner. Moreover, the position of an underground watershed or respectively the direction and flow rate of the flows in flooded drift sections can be determined on the basis of fiber-optic temperature measurements.

Abstract: A temperature probe (10) including a cylindrical thermally conductive housing (10) and a temperature sensor (18) employing a resistive temperature element (22) mounted therein. The temperature sensor (18) is mounted at one end of the housing (12) by a thermally conductive potting material (50). Signal wires (36) electrically couple to the resistive element (22) extend through an elongated insulated member (30) and out of an end of the housing (12) opposite the sensor (18). Changes in the temperature of the housing are quickly transferred to the resistive temperature element (22) through the conductive potting material (50). In one embodiment, the probe (10) is combined with a pressure transducer (60) to provide a pressure and temperature sensing device.

Abstract: A transducer assembly for measurement of downhole temperature and (if required) pressure includes a crystal resonator responsive to temperature and a pair of temperature sensors such as thermocouples or RTDs. One sensor is located with the crystal resonator and the other is exposed to external conditions such as those adjacent the pressure resonator. Thus, the sensors provide a correction signal for the resonator and allow improvement in the transient response of the transducer. A feedback circuit for correcting the resonator output is also disclosed.

Abstract: Temperature sensing apparatus comprises a source of electromagnetic radiation (1), a wavelength-selective element (3) which interacts with radiation emitted from the source (1) and a detection system (6) which monitors radiation from the wavelength-selective element (3). The wavelength-selective element (3) is fixedly mounted on a substantially rigid substrate (not shown). The apparatus can be used for temperature sensing in aquatic environments.